JPH05328668A - Rotating machine - Google Patents

Abstract

PURPOSE:To make automatic assembly possible by providing the cover-mounting seat of a bracket with an axial groove and also by providing the inside of a fan cover with a protrusion engaging with the axial groove and the axial end of the cover-mounting seat of the bracket. CONSTITUTION:A bracket 2 with a U-shaped groove formed axially is fixed to a frame 1 by a bolt. Also, a fan cover 3 with a recessed protrusion provided on the inside is inserted axially. Then, the stopper of the fan cover 3 is pushed to the outside, and when the fan cover is inserted further, the recessed part of the fan cover 3 reaches the U-shaped groove of the bracket 2, the stopper pushed to the outside is restored to the original position by a spring action effect, the recessed part is fitted into the U-shaped groove of the bracket 2 and the fan cover 3 is fixed to the bracket 2. Thus, automatic assembly can be performed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan cover mounting structure for a rotating machine that requires an external fan.

[0002]

2. Description of the Related Art FIG. 5 is a sectional view showing a conventional fan cover mounting structure. In the figure, 1 is a frame, 2 is a bracket having a screw hole for attaching a cover, 3 is a fan cover, 4 is a fan, and 9 is a bolt for mounting and fixing the fan cover 3.

The conventional fan cover mounting structure is constructed as described above, and the bracket 2 is formed with screw holes.
This is a method in which the fan cover 3 is fitted to the outer periphery of the fan cover 3, positioned, and screwed with bolts 9. Fan cover 3
Is a bracket 2 and four-point support as shown in FIG.

[0004]

Since the conventional structure is constructed as described above, the fan cover mounting seat of the bracket 2 is provided with a screw hole, and a tool such as a spanner is required for assembly and disassembly. In addition, there is a problem that automatic assembly cannot be performed easily.

The present invention has been made to solve the above-mentioned conventional drawbacks, and an object thereof is to obtain a rotating machine in which the fan cover can be fixed by inserting the fan cover into the cover mounting seat portion of the bracket. To do.

[0006]

SUMMARY OF THE INVENTION A rotating machine according to the present invention is provided with an outer fan fan provided on the outer cover side of the rotating machine, a fan cover for covering the outer fan fan, and a cover attachment for locking the fan cover. In a rotary machine including a bracket provided with a seat, the cover mounting seat portion of the bracket engages with the axial groove, and the axial groove inside the fan cover and the axial end portion of the cover mounting seat portion of the bracket engage with each other. The structure is such that a protrusion is provided.

[0007]

The method of mounting the fan cover according to the present invention is as follows.
When the protrusion of the fan cover is inserted into the axial groove of the cover mounting seat of the bracket, the bottom of the protrusion has a diameter slightly smaller than the axial groove surface of the cover mounting seat of the bracket, and is fixed with a spring action effect. .. Also, by providing a stopper protrusion on the protrusion of the fan cover with the same width as the width of the bracket cover mounting seat in the insertion direction, positioning can be done easily, so a wide range of work assembly remodeling is possible and automatic assembly is also easy. You can

[0008]

EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention. Reference numerals 1 and 4 are exactly the same as the conventional structure. Reference numeral 2 is a bracket provided with a U-shaped groove in the axial direction, and 3 is a fan cover having a concave projection 6 inside.
FIG. 2 shows the concave projection 6 of the fan cover 3 and the U-shaped groove 5 of the bracket 2. FIG. 3 shows the spring action of the concave projection 6 of the fan cover 3 when the fan cover 3 is inserted into the mounting seat of the bracket 2. The width a of the concave projection 6 of the fan cover 3 and the width 6 of the mounting seat of the bracket 2 are the same. Stoppers 10 are provided on both sides of the concave projection 6 of the fan cover 3.

The bracket 2 having a U-shaped groove formed in the axial direction is fixed to the frame 1 with bolts. Then, when the fan cover 3 provided with the concave projection inside is inserted in the axial direction, the stopper 10 of the fan cover 3 is pushed outward,
When it is further inserted, the concave portion of the fan cover 3 becomes the bracket 2
Stopper 1 that reached the U-shaped groove 5 and was pushed outward
0 returns to its original state due to the spring action effect, and the concave portion fits into the U-shaped groove portion 5 of the bracket 2 and the fan cover 3 is fixed to the bracket 2. The U-shaped groove portion 5 of the bracket 2 also serves as a detent for the attached fan cover 3 in the outer peripheral direction.

Embodiment 2. FIG. 4 shows another embodiment. The concave projection 7 of the fan cover 3 is an insertion guide that is bulged outward, and is provided so that it can be easily inserted into the mounting seat of the bracket 2. In general, the fan cover is often manufactured from a pressed product made of steel plate, but if it is made of resin, the spring elasticity of the concave protrusion can be enhanced, and the mountability and the fixability to the bracket can be further enhanced. ..

[0011]

As described above, according to the present invention, it is not necessary to use a tool such as a spanner at the time of mounting and disassembling the cover, automatic assembly becomes possible, and work efficiency can be improved. Also, when mounting the cover on the bracket, the recess of the cover is fixed by spring action, so the screwing of the bracket can be eliminated and the mounting screw can be deleted, and at the same time, the bracket on the load side and the anti-load side can be removed. It becomes possible to measure sharing.

[Brief description of drawings]

FIG. 1 is a sectional view of a fan cover mounting structure according to an embodiment of the present invention.

FIG. 2 is a perspective view of a U-shaped groove portion of a bracket and a concave protrusion portion of a fan cover according to an embodiment of the present invention.

FIG. 3 is a sectional view showing a spring action effect and a concave portion of a fan cover according to an embodiment of the present invention.

FIG. 4 is a perspective view of a fan cover showing another embodiment of the present invention.

FIG. 5 is a cross-sectional view of a conventional fan cover mounting structure.

FIG. 6 is a fixing position view of a conventional fan cover as viewed in the axial direction.

[Explanation of symbols]

 1 Frame 2 Bracket 3 Fan Cover 4 Fan 5 U-shaped Groove 6 Recessed Protrusion 7 Insertion Guide 8 Recess 9 Bolt 10 Stopper

Claims (1)

[Claims] 1. A rotary machine comprising: an outer fan fan provided on a jacket side of the rotating machine; a fan cover for covering the outer fan fan; and a bracket provided with a cover mounting seat for locking the fan cover, A rotary machine comprising: an axial groove formed on a cover mounting seat portion of the bracket; and a protrusion portion provided inside the fan cover to engage with the axial groove and an axial end portion of the cover mounting seat portion.